Home / 20,028,346.20-27,639,125.10-10,860,986.52

Finding the Fourth Proportional to 20,028,346.20, 27,639,125.10 and 10,860,986.52

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Solution

The fourth proportional to 20,028,346.20, 27,639,125.10 and 10,860,986.52 is: 14,988,165.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028,346.20 : 27,639,125.10 = 10,860,986.52 : x
  2. Step 2: Convert to fraction form
    20,028,346.20/27,639,125.10 = 10,860,986.52/x
  3. Step 3: Cross multiply
    20,028,346.20x = 27,639,125.10 × 10,860,986.52
  4. Step 4: Simplify right side
    20,028,346.20x = 300,188,165,135,693.62
  5. Step 5: Solve for x
    x = 300,188,165,135,693.62/20,028,346.20
  6. Step 6: Final answer
    x = 14,988,165.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.